No, it’s not another giant meteor scare.  Dr. Richard J. Gott, using a philosophical and scientific principle called the Copernican Principle, predicts how much longer things can last; presidents’ tenures, dogs lives, and the human species. Our future?  Anywhere from 5100 years to 7.8 million. And he makes this prediction with 95% accuracy.  To beat that range, he believes we will need to colonize another world (potentially Mars) in the next 46 years, and he uses the Fermi Paradox to back up this assertion.  I don’t know about you, but I think 7.8 million years would be woefully inadequate.